Home / 28,425.44-42,638.27-12,824.84

Finding the Fourth Proportional to 28,425.44, 42,638.27 and 12,824.84

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Solution

The fourth proportional to 28,425.44, 42,638.27 and 12,824.84 is: 19,237.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,425.44 : 42,638.27 = 12,824.84 : x
  2. Step 2: Convert to fraction form
    28,425.44/42,638.27 = 12,824.84/x
  3. Step 3: Cross multiply
    28,425.44x = 42,638.27 × 12,824.84
  4. Step 4: Simplify right side
    28,425.44x = 546,828,713.31
  5. Step 5: Solve for x
    x = 546,828,713.31/28,425.44
  6. Step 6: Final answer
    x = 19,237.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.